Window fan



FIG. 1 is a front perspective of a window fan according to my newdesign;

FIG. 2 is a top view of the window fan of FIG. 1;

FIG. 3 is a front elevation view of the window fan of FIG. 1;

FIG. 4 is a right side view of the window fan of FIG. 1;

FIG. 5 is a left side view of the window fan of FIG. 1;

FIG. 6 is a bottom view of the window fan of FIG. 1;

FIG. 7 is a rear elevation view of the window fan of FIG. 1; and,

FIG. 8 is rear perspective view of the window fan of FIG. 1.

Those features shown in broken lines are included for providingenvironment only and form no part of the claimed design.

CLAIM The ornamental design for a window fan, as shown and described.